些許:

# 從2 進位制到 36 進位制
int('f',16) 
int('10100111110',2)   
# 10 轉 16
hex(1033)
# 10 轉 2
bin(10)
# 10 到 8
oct(11)

程式碼:

# Number Base
# 
def checkio(str_number, radix):
    try:
        return int(str_number, radix)
    except:
        return -1


#These "asserts" using only for self-checking and not necessary for auto-testing
if __name__ == '__main__':
    assert checkio("AF", 16) == 175, "Hex"
    assert checkio("101", 2) == 5, "Bin"
    assert checkio("101", 5) == 26, "5 base"
    assert checkio("Z", 36) == 35, "Z base"
    assert checkio("AB", 10) == -1, "B > A = 10"
    print("Coding complete? Click 'Check' to review your tests and earn cool rewards!")